Migration to use the new MDC-based Angular Components. Components migrated: core, autocomplete, form-field, input, select

[copybara-service]

Migration to use the new MDC-based Angular Components. Components migrated: core, autocomplete, form-field, input, select

Other Changes

• Make sure mat-form-field wrapped around selector has "appearance=outline", and leave input wrapper with the default appearance.
• updated graph viewer view: set responsive width for side-nav and side-content, removed iframe border
• consolidated string-filter styles: removed tool component specific styles, use base styles from the filter itself
• updated hlo op profile top op selector: removed slider, change event listener to "change" to make it more responsive
• Added ".row" class style into common.scss stylesheet. It is noticed that there are many commonly used classes (eg. item-container, row..etc), but each components defines the style for these class by its own, instead of using a commonly shared stylesheet. Considering gradually migrating to common styles.
• updated stats_table.ng.html, replaced placeholder with mat-label